Pile-cutting device



Mar. 27, 1923. 1,450,011

l P. A. WAGNER PILE CUTTING DEVICE Filed Oct. 18, 1931 Patented Mar. 27, 1923.

UNITED STATES l11,450,01ul

PAUL A. WAGNER, OF JERSEY CITY, NEW JERSEY.

PILE-CUTTING- DEVICE.

Applcation filed October 18, 1921. Serial N0. 508,586.

l/ 1o all 'whom t may concer/n.:

Be it known that l, PAUL A. WAGNER, a citizen of the United States, residing at Jersey City, in the county of Hudson and State 5 of New Jersey, have invented a certain new and useful improvement in File-Cutting Devices, of which the following is a specification.

The invention relates to mechanism for cutting the rows of loops formed by the loom on pile fabrics, and the main object of the invention is to provide means for guiding the loops to the cutters and presenting them in position for accurate and uniform cutting, and a further object is to provide for severing such pile threads by a shearing cut between two opposed blades whereby all the loops are positively severed along the central line of the row of loops, and the sharpness of the cutting edges of the blades maintained for long periods.

AAnother important object is to provide such cutting mechanism in compact form for successful operation within the narrow limits ador-ded by the rows of loops so that a group or series of such cutting mechanisms may be placed side by side to cut the loops of a corresponding series of adjacent rows as they are delivered from the pile wires of the loom.

The invention consists in certain novel features of construction and arrangement by which the above objects are attained, to be hereinafter described and claimed.

The accompanying drawings form a part of this specification and show the invention as it has been carried out in practice with a rotary shearing blade operating in conjunction with a relatively xed shearing blade.

Figure 1 is a side elevation showing a portion of the carrier, the rotating disk, and its supporting arm.

Figure 2 is a similar view of the opposite side, showing the stationary disk.

Figure 3 is a plan view corresponding to Figure 1.

The remaining scale.

Figure 4 is a vertical section taken on the 50 line 4 4 in Figure 1.

Figure 5 is an elevation showing the outer face of the rotating disk.

Figu

figures are on an enlarged re 6 is an elevation of the inner face of the stationary disk.

Figure 7 is a horizontal section through the stationary disk and its supporting arm. v

extended at the front to form a thin narrow tongue 11 adapted to enter the loops of the pile fabric and guide themy to the blades. rlhe upper face of the tongue is inclined upwardly and rearwardly at 12 to open the loops, and from the incline 12 the plate is cut away on a curve at 13. l

The tongue 11 has a perforation 14 atits end adapted to join it to a pile wire, not shown, and from a point near the end the upper face of the tongue -is provided with an angular groove 15 extending to its junction with the plate and continued upwardly along the curved edge 13 of the latter.

In the plate at the rear are holes 16 adapted to receive bolts or rods, not shown, upon which the carriers are supported on the loom in series, each in line with its row of pile stitches or loops, and (separated from each other by distance washers, as will be understood.

On the side faces of the plate 10 are r1v' eted spring-arms 17 and 18 extending forwardly and having openings in their overhung free ends in axial alinement with each other, adapted to receive cylindrical bosses 19 and 2O on the cutters 21 and 22 and support the cutters with liberty to rotate between the arms while lightly pressed tow gether by the spring force exerted by the arms.

In the boss 19 is a square axially located opening 23 extending through the cutter 21 A and receiving a square shaft 25 by which the cutters 21 of the series are rotated, and in the boss 2O is a centrally located circular opening 24 slightly larger in diameter than the diagonal of the square shaft 25 which latter extends therethrough and rotates idly therein. y ln the spring-arm 18 is a linger 26 formed integrally therewith by suitable dies, extending forwardly and carrying at its free end a rounded pin 27 adapted to engage one of a concentric series of perforations 28 in the cutter 22 and hold it stationary relatively to the rotating cutter 21. By forcing disk 22.are fmarked0. Each disk is holloWed or dished on its inner face,as -at 31 and 32,:.to-finsurethe .desired shearing-contact offth'e blades underithepressure exerted byfthe spring-arms L17 vand 18.

The operation is `as indicated in Figure inwhieh the uncutfloops on the .ground fabrict 'areefed .from .the pile wire, not shown,upon the tongue 11 and' openedand slightly strained lat* their upper portions across the groove 151as they advance upon the inclined portion 12 ofthe tongue. The loop threads are thus presented successively tofthe: disks andseveredin the centre by the shearing actionof a moving blade l29 against Thebl'ades extendwell into the groove so that the cntting line is'about midway fbetween the root'and point'ofthe blades and certainty of severance 'thus assured. 'When thus cut, the severed ends 35 pass the carrier onf each .side andlmove on lwith the ground-fabric 34 asusual. t

The :shearing'cut thus produced by ytwo opposed blades is clean and positive, and as 'the "shearin'gline, is definitefand true,l uni* forriiity is 'insured and the quality of the goods 2 greatly improved.

A feature of the highest importance -is the long lservice attained without resharpviening, due to the shearing actionasagainst any form of knifeact-idn either statinary,

rotary or oscillatory in each of which the cutting 'edg'eis quickly dul'led. The stationary disk maybe readily advanced to present 'a newfsheariiig blade and ythe rotating.; disk,

by Ireason of its multiplicity of shearing blades, lwill maintain its `sharpness indelinitely.

It] is preferable with certain classes of vgoods to revolve the rotating disk in Ithe' direction Aindicated]by theiarrow in Figure 8,-. which i's--the direction yof the travel of lthe fabric, but the rotatingdisk may be revolved in `the lopptrs'it-e, direction'thu's tending to I liftv the pile'v thread and present it for shearing-'to lthe adjacent stationary blade.

Althoiig'h the invention is vshownand de scribed as v(,)p'er'ating with circular disks armed withperipheral blades, itwillbe understood `4that two v'shearing blades in any form operating in conjunctionwith a member havinga `groove for "presenting the pile threads, and performing the shearing operation in Asuch groove, may be substituted 'for the disks'.

`and-arranged-to-operatein such groove and sever a pile thread extended across such groove.

'2. I-na device of thecharacter set forth, a carrier, a member thereon having a groove,-

two fopposed cooperatingshearing blades' mounted vcoaxially on saidfcarrier'and arranged-to-operate in such groove andsevei' a pile =tl`1read extended across ysuch groove, and-means for holdingsaid blades in shear,-

ing contact with eaichother.

In 'a-deyice-of the character set forth',

a carrier, a member thcreon'having a groove',

twoA opposed cooperatingshearing blades mounted coaxially on said-carrier and 'arranged to operat'einsuch groove and sever a vpil-e thread l extended Y across .such Vfgroove,

means for moving one o'fvsaid blades', andY means ffor 'holding the i other f of said Y blades stationary #relatively to said imovable blade.

'4. Inadev'ice of the character set forth, 100

a carrier, a member thereonhaving a groove. two opposed Icooper-atingshearing blades mounted @damn-"y 'on Sai-d earn-er and ranged to operate in such groove andsever afpile thread fex'tended across such groove. meansformoving one L of said blades,"means for holdingthe vother, 5f-said bladesjs'tationary relatively to said rmoy-able blade, 4and me'a'ns f'for holdin-gjsaid blades'yieldinfgly in shearing ,Contact `with eachother. e

5. In a dev-icefofithevcharacter setfrth. a cz'irri'e'i",l a member 'thereon havii'i'gv a fgroove. and 'two disksmounted n said carrier and havingy Opposed shearing blades-arranged to operate in such groove 'and sever a pile thread extended across suchfgroove.

6. In 7a device o'fithe character lset ferilli, a carrier, a iiiei'nber lthereon having a '-g'ioove, tivo disks 'mounted 'on' said carrierand having opposed shearing blades arranged toeperate in such groove and sever fapile 'thread extended across such groove, and means I"for holding `said disks 'vyielding'ly in'sheaiing contact with -each, other. 'l Y 7. In a dev'ice 'ofthe 'character set ffrth, a carrier, a member thereonhavinga -`groove, two disks mountedf nsadcarri'erfand ha'ving opposed, shearing blades 'arrangedftc operate in v'Such groove 'and sever fa q'pi'le thread extended across such groove, means for holding said disks yieldingly in shearing contact with each other, means for rotating one of said disks, and means for holding the other of said disks stationary relatively to said rotatable disk.

8. In a device of the character set forth, a carrier, a member thereon having a groove, two disks mounted on said carrier and having opposed shearing blades aranged to operate in such groove and sever a pile. thread extended across such groove, means for rotating one of said disks, and means for holding the other of said disks stationary relatively to said rotatable disk.

9. In a device of the character set forth, a carrier, a tongue adapted to enter the loops of a pile fab-ric, and having a groove therein, and two opposed disks having shearing blades arranged to operate in such groove and adapted to sever a pile thread extended across such groove.

10. In a device of the character set forth, a carrier, a tongue adapted to enter the loops of a pile fabric, and having a groove therein, two opposed disks having shearing blades arranged to operate in such groove .and adapted to sever a pile thread extended across such groove, and means for holding said disks yieldingly in shearing contact with each other.

11. In a device of the character set forth, a carrier, a tongue adapted to enter the loops of a pile fabric, and having a groove therein?, two opposed disks having shearing blades arranged to operate in such groove and adapted to sever a pile thread extended across such groove, means for moving one of said disks, and means for holding the other of said disks stationary relatively to said movable disk.

12. In a device of the character set forth, a carrier, a tongue adapted to enter the loops of a pile fabric, and having a groove therein, two opposed disks having shearing blades arranged to operate in such groove and adapted to sever a pile thread extended across such groove, means for moving one of said disks, means for holding the other of said disks stationary relatively to said movable disk, and means for holding said disks yieldingly in shearing contact with each other.

13. In a device of the character set forth, a plate, a tongue thereon having a groove, spring-arms on said plate, and two opposed shearing blades mounted between said arms and arranged to operate in such groove, and held in shearing contact by said arms.

14. In a device of the character set forth, a plate, a tongue thereon having a groove, spring-arms on said plate, two opposed shearing blades mounted between said arms and arranged to operate in such groove, and held in shearing contact by said arms, means for moving one of said blades, and means for holding the other of said blades stationary relatively to said movable blade.

15. In a device of the character set forth, a plate, arms thereon, two disks revolvably mounted between said arms and having peripheral opposed shearing blades, means for rotating one of said disks, and means for holding the other of said disks stationary relatively to said rotatable disk.

16. In a device of the character set forth, a plate, arms on said plate each having an opening in its free end, two disks revolvably mounted between said arms, each having a boss received in such openings and having peripheral opposed shearing blades, a shaft extended through said disks and bosses and arranged to rotate one of said disks, and means on one of' said arms for holding the other of said disks against rotation.

17. In a device of the character set forth, a plate, arms on said plate each having an opening in its free end, two disks revolvably mounted between said arms, each having a boss received in such openings and having peripheral opposed shearing blades, a shaft extended through said disks and bosses and arranged to rotate one of said disks, a series of perforations in the other of said disks, a finger on one of said arms, and a pin on said finger adapted to engage either of said perforations.

18. In a device of the character set forth, a plate, a tongue thereon having a groove, spring-arms on said plate each having an opening in its free end, two disks revolvably mounted between said arms, each having a boss received in such openings and having peripheral opposed shearing blades extending into such groove, a shaft extending through said disks and bosses and arranged to rotate one of said disks, a series of perforations in the other of saidfdisks, a spring finger on one of said arms, and a pin on said finger adapted to engage any one of said perforations.

In testimony that I claim the invention above set forth I affix my signature.

PAUL A. WAGNER. 

